#1 is known. The caching has been improved in 2.0b7 (in fact is has been completely overhauled for 2.0x). When doing things like inserting, tweak-ordering, and shuffling, the player should "pause" much less often.

I do still see the occasional hiccup when inserting. I hope they fix it. Can't tell if they have in the internal b8 code yet or not.

I get #2 also. Empeg guys, is this normal, or do I have the negative spike bug? The only time I ever get a thump is when I start the ignition while the player is playing.